@misc{indiciae20ae137833f5, title = {A research database for improved data management and analysis in longitudinal studies.}, author = {R A Bielefeld and T S Yamashita and E F Kerekes and E Ercanli and L T Singer}, url = {https://pubmed.ncbi.nlm.nih.gov/7596250/}, note = {Source identifier: 7596250} }